Ask HN: Would ChromeOS exist if Windows was lighter and easier for sysadmins?

I've heard a lot about why to use ChromeOS over Windows, I think its two things that made it successful (especially in education): Its much more lightweight than Windows, faster and much higher battery life, & Much easier for sysadmins to manage many Chromebooks.

If Windows had those before ChromeOS existed, would it be as appealing as it is or was? Personally I don't think so.